bxpapersize – Synchronize output paper size with layout paper size

As is well known, in LaTeX pro­cess­ing lay­out pa­per size spec­i­fied by
doc­u­ment class op­tions is not au­to­mat­i­cally ap­plied to out­put pa­per
size. This pack­age en­ables LaTeX au­thors to syn­chro­nize both kinds of
pa­per sizes.